1 files changed, 25 insertions, 0 deletions
diff --git a/src/string/strlen.c b/src/string/strlen.c
new file mode 100644
index 00000000..89ccbfcc
--- /dev/null
+++ b/src/string/strlen.c
@@ -0,0 +1,25 @@
+#include <string.h>
+#include "nonstd/assert.h"
+
+/** find string length **/
+size_t strlen(const char *s)
+{
+	size_t i = 0;
+
+	ASSERT_NONNULL(s);
+
+	for (i = 0; s[i] != '\0'; i++) {
+		continue;
+	}
+
+	return i;
+}
+
+/***
+counts the number of bytes in the string ARGUMENT(s), not
+including the terminating null character.
+***/
+/*
+	RETURN_ALWAYS(the length of the string);
+STDC(1)
+*/